Which particle has: 7 protons, 8 neutrons and 7 electrons?

Question

BlackTom AI · Accepted Answer

The question asks to identify the particle with 7 protons, 8 neutrons, and 7 electrons. 
First, note that the number of protons (7) defines the element (its atomic number Z = 7). An element with Z = 7 is nitrogen, symbol N.
Next, the number of neutrons is 8, which together with 7 protons gives a mass number A = Z + N = 7 + 8 = 15, so this matches nitrogen-15 if needed for isotopic specification.
Finally, the number of electrons is 7. In a neutral atom, the number of electrons equals the number of protons, so having 7 electrons is consistent with a neutral nitrogen atom (no net charge).
Now evaluate the options:
- O: This option would correspond to oxygen, which has 8 protons (Z = 8). Since our particle has 7 protons, this cannot be O. The mismatch in atomic number immediately rules it out.
- N1-: This would be a nitrogen-based species with a 1- charge, meaning it would have 8 electrons (since electrons increase with negative charge). Our particle has 7 electrons, so this option fails due to the incorrect electron count and charge state.
- Ne: Neon has 10 protons (Z = 10). The given proton count is 7, so this is not Ne.
- N: This corresponds to nitrogen with Z = 7. With 7 protons and 7 electrons, the atom would be neutral, and 8 neutrons yields mass number 15, which is consistent with the provided counts. Therefore, this option matches all specified quantities.
In summary, the combination of 7 protons, 8 neutrons, and 7 electrons aligns with a neutral nitrogen atom (nitrogen-15), whereas the other options fail due to incorrect proton count, incorrect electron count/charge, or incorrect element identity.

Which particle has: 7 protons, 8 neutrons and 7 electrons? 单项选择题

类似问题

In the nucleus of there are

How many protons, neutrons and electrons are in rubidium - 88?

Which diagram(s) best represent(s) only atoms? 哪些图表最适合只表示原子？

An atomic attribute _____.

The nucleus can be positively or negatively charged depending on the identity of the atom.

How many protons, neutrons, and electrons are in one atom of 67Zn ?

Read each statement below and identify all true statements. Circle all correct answers.

In any neutral atom, there are equal numbers of

更多留学生实用工具

智能学习助手

风格化写作助手

论文查重助手

文献引用助手

课堂转译助手

课堂笔记助手

Quiz搜索助手

学校历年真题

智能刷题助手

智能匹配练习

希望你的学习变得更简单